The greatest common factor of 80 and 50 is 10 :)
The GCF is 10.
"10 + 50 = 80" is an incorrect equation.
80 (50+10+10+10=80)
The GCF is 10.
80
Take your pick; 10 and 20, 10 and 30, 10 and 40, 10 and 50, 10 and 60, 10 and 70, 10 and 80, 10 and 90, 20 and 30, 20 and 50, 20 and 70, 20 and 90, 30 and 40, 30 and 50, 30 and 70, 30 and 80, 40 and 50, 40 and 70, 40 and 90, 50 and 60, 50 and 70, 50 and 80 50 and 90, 60 and 70, 70 and 80, 70 and 90, 80 and 90.
80% cause 8/10=80%
5/8 x 10/10 = 50/80 3/10 x 8/8 = 24/80 50/80 - 24/80 = 26/80 = 13/40
The factors of 50 are: 1, 2, 5, 10, 25, 50 The factors of 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
It is an 80% reduction ((50-10)/50)*100
50